Yaosheng Zhang Zhongjing's Dioscorea Pill has been applied to skin diseases, respiratory diseases, immune systems, tumors and other diseases in clinic. In the past decade, the research on dioscorea pills has been widely conducted based on the development of modern Chinese medicine, and thus yield many significant outputs. For example, some research showed positive results regarding the application of yam pills in clinical pracices on diseases of many different systems, such as skin diseases, respiratory system, immune system and tumors. By contrast, others showed that dioscorea pills do not play a role in controlling disease progression and relieving symptoms when treating certain diseases.
